The AirTAC GFR600-20 AirTAC Filter Regulator, G3/4, 5 um, Manual Drain is a genuine G-series filter regulator: water separation, 5 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has PT3/4" ports, a manual drain and regulates 0.05 - 0.9 MPa (7 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The AirTAC GFR600-20 is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This size 600 unit carries a G3/4 (BSPP) port, a 5 um filter element (the finer of the two catalogue grades), a manual drain on the bowl, a square pressure gauge reading in psi, and a reverse/check valve fitted. The maximum working (inlet) pressure is 1.0 MPa (145 psi), the regulator adjustment range is 0.05-0.9 MPa (7-130 psi), and the operating temperature is -5 to 70 C (non-freezing). At size 600 the bowl is aluminium alloy.
This is a genuine AirTAC part. The GFR family is published in sizes 200, 300, 400 and 600 with a choice of port, thread (PT standard; G and NPT as order options), drain type (differential-pressure, automatic or manual), filter grade (40 um standard, 5 um optional), gauge scale and reverse/check valve. Flow is published as curves rather than a single rated figure, so we confirm flow and datasheet figures on request.
| Model | GFR600-20 AirTAC Filter Regulator, G3/4, 5 um, Manual Drain |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT3/4" (G (BSPP) thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 130 psi) |
| Pressure type | Standard type |
| Adjusting mechanism | Balanced type |
| Fluid | Compressed air |
|---|---|
| Max. working pressure | 1.0 MPa (145 psi) |
| Temperature range | -5 to +70 °C (unfreeze) |
| Drain type | Manual drain |
| Bowl material | Aluminium alloy |
| Pressure gauge | Fitted — square, psi scale |
| Reflux valve | Fitted (reverse flow permitted) |
Specifications follow the official AirTAC G-series air-preparation data. The regulating band is set by the drain type: automatic and differential-pressure drains regulate 0.15 - 0.9 MPa, a manual drain regulates 0.05 - 0.9 MPa. Standard type, regulating 0.05 - 0.9 MPa (7 - 130 psi). Air must not freeze in the unit. Flow curves, weight and outline dimensions are not published in our data set — ask us and we will confirm from the factory datasheet.
| GFR600 | G-series filter regulator, 600 body — sets the port range. |
|---|---|
| 20 | Port size PT3/4". This body offers 20 = PT3/4", 25 = PT1". |
| M | Drain: Manual drain — this also sets the regulating band (0.05 - 0.9 MPa (7 - 130 psi)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. C is round, F is square. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| G | G (BSPP) thread. PT is the default; G is BSPP and T is NPT. |
| K | Reverse-flow (reflux) valve fitted. |
Field order is size, port, drain, type, bracket, gauge, shape, scale, grade, thread, reflux — a blank position takes the default. Example: GFR300-08 is a 300 body, PT1/4", differential drain, standard type, bracket included, gauge fitted, 40 µm, PT thread, no reflux valve.
A larger body carries a larger port and holds set pressure better as flow rises. AirTAC publishes flow only as curves, so size the body from your peak demand with headroom. The GFR600 uses an aluminium-alloy bowl; the 200, 300 and 400 bodies use PC.
| This model | GFR600 · PT3/4" · 5 µm |
|---|---|
| One size down | GFR400 |
| Add lubrication | GFC600-20 (two-unit set) |
On a spray-booth supply drop, the GFR600-20 filters water and fine particulate from the air feeding spray guns and holds a steady regulated pressure so finish quality does not drift between shifts. The manual drain is bled during the daily booth check.
On a carton-forming and sealing conveyor, the unit feeds cylinders and gripper circuits through a 3/4 in main, with the 5 um element protecting valve internals and the regulator holding consistent cylinder speed. The check valve keeps the circuit pressurised if plant air dips.
On a process skid, the regulator sets a stable instrument-air pressure to pneumatic valve positioners while the 5 um grade keeps the positioner pilot clean. The psi gauge lets technicians verify setpoint at the panel without extra instrumentation.
Size 600 with a G3/4 port is the largest step in the GFR range, so start there when the line is sized at 3/4 in or when expected demand sits above what the 200/300/400 bodies serve; match the size and port step against the flow your circuit needs. This unit is configured with a manual drain, which suits installations where an operator can bleed the bowl on a routine round; automatic or differential-pressure drains are the catalogue alternatives where unattended drainage matters. The 5 um element (code W) is the finer grade versus the 40 um standard, chosen where downstream equipment tolerates less particulate. The square gauge reads in psi; MPa and bar scales are also published, and an external round gauge is optional. Thread here is G (BSPP); PT is the standard and NPT is an order option. A bracket is included, and the reverse/check valve holds downstream pressure on supply loss.
One honest note on sizing: AirTAC publishes GFR flow as curves, not as a single rated number, so we do not quote a rated flow figure. Ask us to confirm flow against your application from the datasheet before you order.
Quick checklist
The aluminium-alloy bowl on the GFR600 suits harsher environments than a PC bowl. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
AirTAC publishes GFR flow as curves, not as a single rated figure, so we do not quote a rated flow number. Tell us your application and we will confirm the flow from the datasheet curves against your demand before you order.
A manual drain means an operator opens the bowl drain during routine checks to expel collected water; automatic and differential-pressure drains are the catalogue alternatives for unattended duty. The 5 um element (code W) is the finer of the two published grades versus the 40 um standard, suiting downstream equipment that tolerates less particulate.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity, thread type (PT / G / NPT), gauge scale and destination. We confirm price, availability and lead time — usually within 7-8 hours.